18
9*2
You just basically do 9 doubled which is 18
The number of days d, he must use the gym to make the membership worthwhile is at least 21 days
Equation
Non members:
Cost of swimming per day = $5
Cost of exercise per day = $9
Total = $5 + $9
= $14
Members:
Yearly fee = $300
Exercise fee per day = $4
Swimming fee = $0
The number of days d, he must use the gym to make the membership worthwhile = $300 ÷ 14
= 21.42857142857142
Approximately,
21 days
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Answer:
An average of 60mph.
Step-by-step explanation:
The average is the mean.
(50 + 70)/2 = 60
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Answer:
Let the side of square be a cm and radius of the circle be r cm
Give, r=12 cm
Area of the square =a2cm2
ΔABC is a right angled triangle.
Thus, by Pythagoras theorem, we have
AB2+BC2=AC2
⇒a2+a2=(2r)2
⇒2a2=4r2
⇒a2=2r2
⇒a2=2(12)2
⇒a2=2×144
=288cm2
Step-by-step explanation:
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